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17. Connecting the refrigerant
lines to the indoor module
Remove the nuts from the liquid line and hot gas line connections of the refrigerant
lines.
Slide the supplied nuts over the copper pipes.
Flare the copper pipes.
The Euro flanged adaptor connection kit, available from the Wolf range of
accessories, can be used as an alternative to flaring.
Do not allow any contaminants (e.g. metal swarf or moisture) to enter the
copper pipes.
Connect the copper pipes
Tighten nuts with the following torque:
Line
Connection to indoor unit
Torque in Nm
Liquid line Ø 10 mm
5/8 UNF
37 +/- 4
Hot gas line Ø 16 mm
7/8 UNF
70 +/- 7
Please note
Liquid line
Hot gas line
Connecting the refrigerant line to
the indoor module
Leak and pressure testing
Carry out the leak and pressure test using dry nitrogen.